Home / 112,423.40-155,125.87-66,476.65

Finding the Fourth Proportional to 112,423.40, 155,125.87 and 66,476.65

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Solution

The fourth proportional to 112,423.40, 155,125.87 and 66,476.65 is: 91,726.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,423.40 : 155,125.87 = 66,476.65 : x
  2. Step 2: Convert to fraction form
    112,423.40/155,125.87 = 66,476.65/x
  3. Step 3: Cross multiply
    112,423.40x = 155,125.87 × 66,476.65
  4. Step 4: Simplify right side
    112,423.40x = 10,312,248,165.94
  5. Step 5: Solve for x
    x = 10,312,248,165.94/112,423.40
  6. Step 6: Final answer
    x = 91,726.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.